Economy Census data confidential; guaranteed under laws: RGI Updated : January 21, 2020 05:24 PM IST The house listing phase of the Census 2021 will be carried out from April 1 to September 30, 2020. The census will have its reference date as March 1, 2021, but for snow-bound Jammu and Kashmir, Himachal Pradesh and Uttarakhand it will be October 1, 2020. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.